Improvement in whistling toys



' of the city, county, and State of New York iEORGE F. PFEIFFER, OF NEVVYORK, N. Y.

IMPRQVEMENT IN WHISTLING TOYS.

Specification forming part of Letters Patent No. h34t,3, dated December24, 1872,

To all whom it may concern:

Be it known that I, GEORGE F. PFEIFFER,

7 have invented a new and useful Improvement in Whistling Toys and I dohereby declare the following to be a full, clear, and exact descriptionthereof, which will enable those skilled in the art to make and use thesame, reference being had to the accompanying drawing forming part ofthis specification, in which drawing-- Figure 1 represents alongitudinal section of this invention, and Fig. 2 is a front view ofthe same.

Similar letters indicate corresponding parts.

This invention consists in the arrangement of a peri'ora-ted diaphragmextending over a hole in the compressible shell of a toy, the

perforation in the diaphragm being by prefer ence so situated that itsedge is opposite the center (or nearly so) of the hole in the shell insuch a manner that when the shell is compressed and the air containedtherein is driven out through the perforation in the diaphragm the.current of air rushing out through said perforation strikes the edge ofthe hole in the shell, and thereby a whistling sound is produced.

In the drawing, the letter A designates a toy which is made, partiallyor wholly, of India rubber or other flexible and elastic material. Inthe shell of this toy is a hole, a, and over this hole extends adiaphragm, b, which is perforated with an aperture, 0. The hole a andthe aperture 0 are'not exactly opposite to each other, the aperturecbeing, by preference, so situated that its edge is opposite to thecenter of the hole a, or nearly so. If the shell of the toy iscompressed a current of air is driven out through the aperture cin thediaphragm, and as this current strikes the edge of the hole a awhistling sound is produced. The diaphragm b and shell on are eachformed with the toy A during the process of molding; and by this meansno secondary or independent reeds are employed and, fur thermorefby thisconstruction the article is readily and cheaply produced anddisplacement of the whistling mechanism prevented, My experiments showthat this whistling sound is also produced it the holes 0 and a aresituated almost precisely opposite to each other, but a better eit'ectis obtained if the edge of the inner hole 0 is opposite the center ofthe outer hole a.

This improvement is applicable to all toys which are either wholly orpartially composed of India rubber or other flexible and elasticmaterial, so that by compressing their shell, or that portion/[hereofwhich is made of India rubber, a current of air can be made to escapethrough the holes a and a.

I do not claim a whistling toy having in serted into it a reed connectedwith the toy by a groove, for such is old and well known, but

That I claim as new, and desire to secure by Letters Patent, is-- Asanew article of manufacture, a toy made wholly or in part of Indiarubber or other elastic material having the perforated flexiblediaphragm 1) extending over the hole a of the shell of the toy, thewhole formed in one piece, substantially as herein shown and described.

GEORGE F. PFEIFFER.

Witnesses:

W. HAUFF, E. G, KASTENHUBEB.

